Add Lilygo T-Impulse-Plus by vidplace7 · Pull Request #10497 · meshtastic/firmware

vidplace7 · 2026-05-18T18:36:09Z

Adds support for Lilygo T-Impulse-Plus.

Changes Made

New board definition: boards/t-impulse-plus.json
New variant: variants/nrf52840/t-impulse-plus/ (variant.h, variant.cpp, platformio.ini)
Added custom_meshtastic_* metadata to variants/nrf52840/t-impulse-plus/platformio.ini so the variant is correctly picked up by the CI build matrix and device manifest generator (bin/platformio-custom.py):
- custom_meshtastic_hw_model = 135
- custom_meshtastic_hw_model_slug = T_IMPULSE_PLUS
- custom_meshtastic_architecture = nrf52840
- custom_meshtastic_actively_supported = true
- custom_meshtastic_support_level = 1
- custom_meshtastic_display_name = LILYGO T-Impulse Plus
- custom_meshtastic_tags = LilyGo
- custom_meshtastic_requires_dfu = true
- board_level = pr
HW_VENDOR mapping added to src/platform/nrf52/architecture.h

Working

Display
Vibration Motor (acts as a notification LED for now)
Front touch sensor (acts as button)
Battery reading
LoRa
Vibrate upon screen-touch (haptic feedback) - thanks @caveman99 🍻
GPS - thanks @caveman99 📡
IMU (accelerometer)

Not Working / Known Issues

UI is oversized, even with OLED_TINY changes. This will need some special consideration @HarukiToreda

Dependencies

🤝 Attestations

I have tested that my proposed changes behave as described.
I have tested that my proposed changes do not cause any obvious regressions on the following devices:
- Heltec (Lora32) V3
- LilyGo T-Deck
- LilyGo T-Beam
- RAK WisBlock 4631
- Seeed Studio T-1000E tracker card
- Other: Lilygo T-Impulse-Plus nRF52840

… into t-impulse-plus

Copilot

Pull request overview

Adds support for the LilyGo T-Impulse-Plus (nRF52840) wristband: SSD1315 OLED, SX1262 LoRa, MIA-M10Q GPS, TTP223 touch button, vibration motor used as notification/haptic feedback, and the SGM41562 I²C charger for input-power/charge-status reporting. Also introduces a small reusable HapticFeedback driver and an SGM41562 charger driver that AnalogBatteryLevel consults for isVbusIn()/isCharging().

Changes:

New nRF52840 variant (variants/nrf52840/t-impulse-plus/) plus its boards/t-impulse-plus.json, with a new HW_VENDOR mapping in src/platform/nrf52/architecture.h.
New src/power/SGM41562.{h,cpp} charger driver, wired into src/Power.cpp behind HAS_SGM41562.
New src/input/HapticFeedback.{h,cpp} with InputBroker integration that emits a short pulse on touch press and an armed long-press pulse on BACK fire.

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
variants/nrf52840/t-impulse-plus/variant.h	Pin map, capabilities (display, GPS, SX1262, IMU, charger, haptic), I²C/SPI/QSPI wiring.
variants/nrf52840/t-impulse-plus/variant.cpp	`g_ADigitalPinMap` and `initVariant()` (QSPI CS high, battery sense enable, RT9080 LDO enable).
variants/nrf52840/t-impulse-plus/platformio.ini	New PlatformIO env extending `nrf52840_base`. Missing the customary `custom_meshtastic_*` metadata used elsewhere.
boards/t-impulse-plus.json	PlatformIO board definition. `variant` field and missing `variants_dir` need attention.
src/platform/nrf52/architecture.h	Maps the `T_IMPULSE_PLUS` build flag to `HardwareModel_T_IMPULSE_PLUS`.
src/power/SGM41562.{h,cpp}	I²C driver for the SGM41562 buck charger with cached refresh and ship-mode/charge-enable control.
src/Power.cpp	Calls `initSGM41562` in `Power::setup()` and consults the charger for `isVbusIn`/`isCharging`.
src/input/HapticFeedback.{h,cpp}	Non-blocking GPIO motor pulser using `OSThread`, with delayed pulse arm/cancel.
src/input/InputBroker.cpp	Hooks the haptic driver into the touch button (press pulse + armed long-press pulse).

… into t-impulse-plus

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

… into t-impulse-plus

* Add Lilygo T-Impulse-Plus * Enable small screen layout 64x32 * trunk'd * Haptic Feedback (short and long press) * enable Charging Indicator * enable nrfutil uploads * trunk fmt * Add Lilygo T-Impulse-Plus * Enable small screen layout 64x32 * trunk'd * Haptic Feedback (short and long press) * enable Charging Indicator * enable nrfutil uploads * trunk fmt * enable proper device model * Dim the haptic duration a bit. * Fix GPS pins and speed. Module enable is active low, speed is 38400 * Potential fix for pull request finding Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> * set correct geometry. * Add custom_meshtastic_* metadata to t-impulse-plus platformio.ini --------- Co-authored-by: Thomas Göttgens <tgoettgens@gmail.com> Co-authored-by: Ben Meadors <benmmeadors@gmail.com> Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>

Forward-port: Add Lilygo T-Impulse-Plus (#10497) to develop

* Add Lilygo T-Impulse-Plus * Enable small screen layout 64x32 * trunk'd * Haptic Feedback (short and long press) * enable Charging Indicator * enable nrfutil uploads * trunk fmt * Add Lilygo T-Impulse-Plus * Enable small screen layout 64x32 * trunk'd * Haptic Feedback (short and long press) * enable Charging Indicator * enable nrfutil uploads * trunk fmt * enable proper device model * Dim the haptic duration a bit. * Fix GPS pins and speed. Module enable is active low, speed is 38400 * Potential fix for pull request finding Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> * set correct geometry. * Add custom_meshtastic_* metadata to t-impulse-plus platformio.ini --------- Co-authored-by: Thomas Göttgens <tgoettgens@gmail.com> Co-authored-by: Ben Meadors <benmmeadors@gmail.com> Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> (cherry picked from commit cb867cc)

Add Lilygo T-Impulse-Plus

62bb2c0

vidplace7 requested a review from HarukiToreda May 18, 2026 18:36

github-actions Bot added needs-review Needs human review hardware-support Hardware related: new devices or modules, problems specific to hardware labels May 18, 2026

vidplace7 requested a review from caveman99 May 18, 2026 20:02

caveman99 added 3 commits May 18, 2026 22:16

Enable small screen layout 64x32

5025ca4

trunk'd

e8ecd0d

Haptic Feedback (short and long press)

ef29126

caveman99 approved these changes May 18, 2026

View reviewed changes

caveman99 added 3 commits May 18, 2026 23:41

enable Charging Indicator

b9d6903

enable nrfutil uploads

fb119a9

trunk fmt

254fc47

caveman99 marked this pull request as ready for review May 19, 2026 05:19

vidplace7 and others added 7 commits May 19, 2026 07:22

Add Lilygo T-Impulse-Plus

da34334

Enable small screen layout 64x32

eda3a79

trunk'd

0c1457b

Haptic Feedback (short and long press)

8a8e4b8

enable Charging Indicator

8fa7ae4

enable nrfutil uploads

6fde0f9

trunk fmt

2e343a1

caveman99 force-pushed the t-impulse-plus branch from 254fc47 to 2e343a1 Compare May 19, 2026 05:22

caveman99 added 3 commits May 19, 2026 08:01

Merge branch 't-impulse-plus' of https://github.com/meshtastic/firmware…

c417ba8

… into t-impulse-plus

enable proper device model

40e191a

Merge branch 'master' into t-impulse-plus

c7c7e62

thebentern requested a review from Copilot May 19, 2026 10:21

Merge branch 'master' into t-impulse-plus

c4daf0a

Copilot started reviewing on behalf of thebentern May 19, 2026 10:22 View session

Copilot AI reviewed May 19, 2026

View reviewed changes

Comment thread boards/t-impulse-plus.json Outdated

Comment thread variants/nrf52840/t-impulse-plus/platformio.ini

Comment thread src/platform/nrf52/architecture.h

caveman99 added 2 commits May 19, 2026 12:37

Dim the haptic duration a bit.

8a82f53

Merge branch 't-impulse-plus' of https://github.com/meshtastic/firmware…

ae63e9b

… into t-impulse-plus

caveman99 and others added 5 commits May 19, 2026 12:46

Fix GPS pins and speed. Module enable is active low, speed is 38400

66d4049

Potential fix for pull request finding

64eded2

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

Merge branch 'master' into t-impulse-plus

ac23497

set correct geometry.

b10d1d5

Merge branch 't-impulse-plus' of https://github.com/meshtastic/firmware…

377ba3d

… into t-impulse-plus

vidplace7 removed the needs-review Needs human review label May 20, 2026

Merge branch 'master' into t-impulse-plus

b06c727

Copilot started work on behalf of thebentern May 27, 2026 20:30 View session

Add custom_meshtastic_* metadata to t-impulse-plus platformio.ini

f037c07

Copilot finished work on behalf of thebentern May 27, 2026 20:33

Copilot AI requested a review from thebentern May 27, 2026 20:33

thebentern merged commit cb867cc into master May 27, 2026
84 checks passed

vidplace7 deleted the t-impulse-plus branch May 27, 2026 21:44

thebentern mentioned this pull request Jun 24, 2026

Forward-port: Add Lilygo T-Impulse-Plus (#10497) to develop #10780

Merged

thebentern added a commit that referenced this pull request Jun 25, 2026

Merge pull request #10780 from meshtastic/forward-port-t-impulse-plus

7aa004c

Forward-port: Add Lilygo T-Impulse-Plus (#10497) to develop

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Add Lilygo T-Impulse-Plus#10497

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vidplace7 commented May 18, 2026 •

edited by Copilot AI

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vidplace7 commented May 18, 2026 •

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